pg_version

(PHP 5, PHP 7, PHP 8)

pg_version Returns an array with client, protocol and server version (when available)

Descrizione

pg_version(?PgSql\Connection $connection = null): array

pg_version() returns an array with the client, protocol and server version. Protocol and server versions are only available if PHP was compiled with PostgreSQL 7.4 or later.

For more detailed server information, use pg_parameter_status().

Elenco dei parametri

connection

An PgSql\Connection instance. When connection is null, the default connection is used. The default connection is the last connection made by pg_connect() or pg_pconnect().

Avviso

As of PHP 8.1.0, using the default connection is deprecated.

Valori restituiti

Returns an array with client, protocol and server keys and values (if available).

Log delle modifiche

Versione Descrizione
8.1.0 The connection parameter expects an PgSql\Connection instance now; previously, a resource was expected.
8.0.0 connection is now nullable.

Esempi

Example #1 pg_version() example

<?php
  $dbconn 
pg_connect("host=localhost port=5432 dbname=mary")
     or die(
"Could not connect");
     
  
$v pg_version($dbconn);
  
  echo 
$v['client'];
?>

Il precedente esempio visualizzerĂ :

7.4

Vedere anche:

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User Contributed Notes 2 notes

up
0
mgchristensen
2 years ago
I note that the array element for "protocol" seemingly has no value, being reported as:

["protocol"]=> int(3)

whereas the array element for e.g. "server" is reported as (in my particular case):

["server"]=> string(5) "10.12"

A call to json_encode() however gives:

"protocol":3 and "server":"10.12"
up
0
live627
2 years ago
Complete output off this function for me is:

array(13) {
  ["client"]=>
  string(5) "9.6.9"
  ["protocol"]=>
  int(3)
  ["server"]=>
  string(4) "12.1"
  ["server_encoding"]=>
  string(4) "UTF8"
  ["client_encoding"]=>
  string(4) "UTF8"
  ["is_superuser"]=>
  string(2) "on"
  ["session_authorization"]=>
  string(8) "postgres"
  ["DateStyle"]=>
  string(8) "ISO, MDY"
  ["IntervalStyle"]=>
  string(8) "postgres"
  ["TimeZone"]=>
  string(10) "US/Arizona"
  ["integer_datetimes"]=>
  string(2) "on"
  ["standard_conforming_strings"]=>
  string(2) "on"
  ["application_name"]=>
  string(0) ""
}
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